Re: [Algorithms] Lightmap Terrain

[Ivan-Assen I. <as...@ha...>]

Neither embossing the heightmap nor dot-products work well. 
The resulting lightmap doesn't give you any clue of where the depths
and heights are (e.g. inverting the heightmap and moving the sun at the
opposite azimute produces the same image).
I'm currently thinking about a simple raytrace, but I feel it will be effective
only with low elevations of the sun over the horizon. We don't have
any sharp features in the heightmap.

Has anybody tried "full" radiosity (whatever that means - e.g. different reflectance/
absorption for textures/ecosystems) on heightfields? Do you think it would
be worth the trouble?